01 - Demo Content Import: This is related to the default limits native to WordPress installs. Check out this article on Troubleshooting the Demo Content Import - specifically 02 on how to increase your limits.

02 - Home Page - Shortcodes are Displaying: It looks like you were able to work this out from the looks of it (reference 1, reference 2). If you are still having issues with this, please let me know by including steps to reproduce so I can help diagnose.